Have another look at the labeling on that drum.
HTC is a Schaeffer's product while SHC is a Mobil one.
Neither is suitable nor intended for IC engine use.
There is an M1R 0W-50 that is specifically not recommended for street use, although the PDS doesn't give enough detail to determine why this might be the case. SAPS is 1.3% and the verbiage indicates high levels of anti-wear protection which might be code for lots of ZDDP. HTHS is listed as 3.8, so not frighteningly high.
IIRC, there is an M1 0W-50 PCMO available in other markets but I've never seen it here.
Finally, unless you have a real need for a really thick oil, the only reason to buy this drum would be if it were a steal, like $300.00 or less. You can get M1 in jugs for less than two bucks a quart AMIR at least a couple of times each year and the 55 gal container isn't exactly a convenient package size to handle.